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Chin. Opt. Lett.
 Home  List of Issues    Issue 09 , Vol. 15 , 2017    10.3788/COL201715.092702


Tunable interaction-free all-optical switching in a five-level atom-cavity system
Tiantian Liu, Gongwei Lin, Fengxue Zhou, Li Deng, Shangqing Gong, and Yueping Niu
College of Physics, [East China University of Science and Technology], Shanghai 200237, China

Chin. Opt. Lett., 2017, 15(09): pp.092702

DOI:10.3788/COL201715.092702
Topic:Quantum optics
Keywords(OCIS Code): 270.1670  230.1150  190.4180  

Abstract
A scheme is proposed for tunable all-optical switching based on the double-dark states in a five-level atom-cavity system. In the scheme, the output signal light of the reflection and the transmission channels can be switched on or off by manipulating the control field. When the control light is coupled to the atom-cavity system, the input signal light is reflected by the cavity. Thus, there is no direct coupling between the control light and the signal light. Furthermore, the position of the double-dark states can be changed by adjusting the coherent field, and, thus, the switching in our scheme is tunable. By presenting the numerical calculations of the switching efficiency, we show that this type of the interaction-free all-optical switching can be realized with high switching efficiency.

Copyright: © 2003-2012 . This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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Received:2017/3/31
Accepted:2017/5/25
Posted online:2017/6/21

Get Citation: Tiantian Liu, Gongwei Lin, Fengxue Zhou, Li Deng, Shangqing Gong, and Yueping Niu, "Tunable interaction-free all-optical switching in a five-level atom-cavity system," Chin. Opt. Lett. 15(09), 092702(2017)

Note: This work was supported by the National Natural Sciences Foundation of China (Nos. 11674094, 11274112, 91321101, and 61275215) and the Fundamental Research Funds for the Central Universities (No. WM1313003).



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